Blizzard Entertainment today announced that the upcoming The Burning Crusade expansion pack for World of Warcraft has been delayed until January. It was earlier scheduled to ship in December.

Here's what Blizzard had to say about the delay:

We appreciate the enthusiasm surrounding World of Warcraft: The Burning Crusade, and we're excited about putting the finishing touches on all of the new content," said Mike Morhaime, president and cofounder of Blizzard Entertainment. "We feel confident that the extra time spent polishing the game will result in the high-quality experience that our players expect and deserve.